125 Harbor Way

Santa Barbara, CA 93101

(805) 774-0637

24/7 Customer Support

Mon - Fri: 9:00 - 5:30

On call service available

Electrical & Starting System Diagnosis Center

Electrical & starting system diagnosis center for marine diesel engines showing battery voltage, starter motor, alternator charging, and no-start troubleshooting — 805 Marine Diesel Mechanic Ventura Oxnard Channel Islands Harbor Santa Barbara

Schedule Electrical Diagnosis Back to Master Troubleshooting Guide Electrical & Starting System Diagnosis Center If your marine diesel won’t crank, cranks slow, starts only sometimes, or keeps killing batteries, this hub gives you the fastest symptom-first pathway to the real cause — without random parts swapping. 805 Marine Diesel Mechanic provides mobile marine diesel diagnostics […]

Marine Engine Heat exchanger clogging symptoms

Marine diesel engine heat exchanger plate style before and after cleaning showing clogging symptoms and restored flow serviced by trained technician at 805 Marine Diesel Mechanic Ventura Channel Islands Harbor Santa Barbara

Heat Exchanger Clogging Symptoms — Marine Diesel Diagnosis Guide Quick Technical Diagnosis Summary: A clogged marine diesel heat exchanger reduces cooling capacity by restricting raw water flow through the tube bundle. Early signs include rising temperatures under load, intermittent overheating, weak exhaust water discharge, and temperature spikes after impeller failure. Heat exchanger clogging is often […]

Caterpillar Marine Diesel Engine Services

Caterpillar Marine Diesel Engine C12

Caterpillar C12 marine diesel engine services by 805 Marine Diesel Mechanic — mobile, veteran-owned support for boaters in Ventura, Oxnard, Channel Islands Harbor, and Santa Barbara. Cat C12 Certified Care | 805 Marine Diesel Mechanic keeps your Caterpillar C12 running clean, cool, and efficient. From commercial workboats to sportfishing and cruising yachts, we provide factory-spec […]